High Pressure Diffusing with the HPD III

Clean Dry Air (CDA), Nitrogen, Argonand Carbon dioxide are all non-toxic and non-flammable gases that the HPD III can handle.

Particle counters have a difficult time sampling gas at pressures above sea level, such as 25–100 psi. Connecting a particle counter to pressured air or gas can cause the flowmetering system to fail and the instrument to be damaged.

Particle counting in compressed gas has been addressed by the development of High Pressure Diffusers (HPDs). By enabling some of the air/gas to flow out of the system, HPDs lower the pressure of the gas to around atmospheric pressure, allowing the Lasair III particle counter’s flow-metering system to perform as intended.

Image Credit: Particle Measuring Systems

Features

Clamps for mounting are included

Connects through male 4-VCR fitting

Stainless steel construction

Exhaust filer reduces the risk of contamination

No wearable moving parts

Benefits

Atmospheric pressure particle counters for cost-effective monitoring of pressured gases

No external flow meters required

Four distinct variants at flow rates of 0.1 CFM, 1.0 CFM, 50 LPM, and 100 LPM

Low contamination, ISO Class I or II cleanliness (less than 5%)

Measures gases at pressures ranging from 25–100 psi (60–100 psi for 100 LPM)

Clean Dry Air, Argon, Nitrogenor other non-toxic inert gases can all be used

Applications

Compressed Gas